'trial run' definitions:

Definition of 'trial run'

noun

Trying something to find out about it; "a sample for ten days free trial"; "a trial of progesterone failed to relieve the pain" [syn: trial, trial run, test, tryout]

Synonyms of 'trial run'

From: Moby Thesaurus

audition,
bench test,
dry run,
experimentation,
flight test,
Gedankenexperiment,
hearing,
pilot plan,
practical test,
practice,
rehearsal,
road test,
shakedown,
shakedown cruise,
test,
test flight,
test run,
trial,
trial and error,
tryout,
workout